County in England

Greater London Väder Prognos

Greater London weather: 16°C, light drizzle. Varje timme forecast, 14-day outlook, UV, air quality and the best time och visit.

🌦️ 16°C now🕔 2:31 AM local📅 Best: maj, juni, juli, augusti and september👥 8.9 million

Greater London weather in september

20°
average high · low 12°C
★★★★☆
ranked #5 of 12 months

One of the best months och visit Greater London.

Average high20°C
Average low12°C
Mean16°C
Regnfall68 mm

september runs 3°C warmer than the annual average in Greater London.

Väder map for Greater London

Animated model layers. Pick a layer och load it.

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Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.

Klimat in Greater London month by month

Average high, average low and total rainfall, based on three years of reanalysis data.

janfebmaraprmajjunjulaugsepoktnovdecLine: average high · Bars: rainfall
MånadAvg highAvg lowRegnfallRating
januari7°2°88 mm★★★☆☆
februari10°5°84 mm★★★☆☆
mars12°5°40 mm★★★★☆
april16°7°32 mm★★★★☆
maj20°11°46 mm★★★★☆
juni23°13°51 mm★★★★★
juli25°15°55 mm★★★★☆
augusti24°15°34 mm★★★★★
september20°12°68 mm★★★★☆
oktober16°10°79 mm★★★★☆
november11°6°76 mm★★★☆☆
december10°6°63 mm★★★☆☆

Klimat type: Temperate. Källa: Open-Meteo archive (ERA5).

Bästa tiden att besöka Greater London

Go in maj, juni, juli, augusti and september. These months score highest on comfortable temperatures, low rainfall and useful daylight.

Hardest months: januari, februari and december - expect the least comfortable mix of heat, cold or rain.

januari★★★☆☆
februari★★★☆☆
mars★★★★☆
april★★★★☆
maj★★★★☆
juni★★★★★
juli★★★★☆
augusti★★★★★
september★★★★☆
oktober★★★★☆
november★★★☆☆
december★★★☆☆

What och pack, what och skip

Pack for the next 7 days
  • Layers - the daily swing is 12°C, so mornings feel nothing like afternoons
Worth avoiding
  • If your dates are flexible, avoid januari, februari and december - historically the least comfortable months here.

How Greater London compares med nearby places

Annual averages, and the difference against Greater London.

PlaceDistanceAvg tempvs hereAnnual rain
London Gatwick Airport40 km12°C1°C cooler820 mm
Kent52 km12°C1°C cooler734 mm
Sussex68 km12°C1°C cooler860 mm
Brighton76 km12°Cabout the same943 mm
Cambridge79 km12°C1°C cooler677 mm

Se prognosen för Greater London per tidsintervall

Greater London weather - more answers

Explore Greater London

Every topic we hold for this place, and the same topic for the places around it.

Väder for related places

Frequently asked questions

Where is Greater London?

Greater London is a county in England. Its coordinates are 51.5074, -0.1278. It lies in Europa.

What is the weather like in Greater London just nu?

It is currently 16°C (61°F) med light drizzle. Luftfuktighet is 84% and wind is 9 km/h.

When is the best time och visit Greater London?

maj, juni, juli, augusti and september offer the most comfortable conditions in Greater London, which has a temperate climate. januari, februari and december are usually the hardest months for outdoor plans.

What time zone is Greater London in?

Greater London observes Europe/London (UTC+01:00). The local time is 2:31 AM.

How many people live in Greater London?

Greater London has a population of approximately 8.9 million.

What is the nearest airport och Greater London?

The closest airports are London Heathrow Airport (LHR), 23 km away, London Gatwick Airport (LGW), 40 km away and Paris Charles de Gaulle Airport (CDG), 337 km away.

What are the top things och do in Greater London?

Popular options include Big Ben and the Houses of Parliament, British Museum, Tower of London, River Thames, Stonehenge and Stonehenge, Avebury and Associated Sites.

What places are in Greater London?

Greater London covers 2 places in this atlas, including London and River Thames.

Related articles

Data sources and methodology

Place dataUSPOTUS Atlas dataset (uk-regions) - coordinates, hierarchy and facts.
Prognos and observationsOpen-Meteo (ECMWF and national models).
Luftkvalitet and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
Klimat averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
MethodScores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown.

Last updated oktober 1, 2026 at 2:31 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.

Davil Hofile
Written byWriter at USPOTUS

Davil Hofile is a writer at USPOTUS covering breaking news, NFL updates, viral stories, entertainment, pets, and lifestyle. He specializes in transforming complex news into clear, trustworthy, and engaging articles that help readers quickly understand what's happening across the United States. His reporting follows Google's E-E-A-T guidelines, emphasizing accuracy, credible sources, and practical value for readers.

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